Functionally obsolete 

421

Structurally deficient 

144

Aluminum, Wrought iron, or Cast iron

2

Concrete

24

Concrete continuous

7

Prestressed concrete

422

Prestressed concrete continuous

2

Steel

727

Steel continuous

67

Wood or Timber

275

Highway

1,487

Pedestrian-bicycle

139

Railroad

9

Third level (interchange)

1

Other

2

Highway

114

Pedestrian-bicycle

3

Railroad

30

Waterway

1,369

Waterway (relief)

5

Other

19

Arch - deck

5

Arch - thru

1

Box beam or Girders - multiple

62

Box beam or Girders - single or spread

4

Channel beam

3

Culvert

87

Frame

1

Girder and Floorbeam system

35

Orthotropic

10

Slab

58

Stayed girder

2

Stringer / Multi-beam or Girder

823

Tee beam

348

Truss - deck

4

Truss - thru

75

Other

8